怎样快速区分主句和从句若句中没有明显的引导词怎么办?可以从句意来判断吗?

主要是看句子中的连词,有连词连接的句子是从句,剩下的就是主句了,比如：
I don't know that she is ill today.主句是I don't know ,从句是 she is ill today；
The place which I have visited last year locates in Beijing.主句是The place locates in Beijing.从句是I have visited last year.
以此类推.
希望能够帮到你哦!

可以